https://blog.youkuaiyun.com/lingfeng2019/article/details/72417007
https://blog.youkuaiyun.com/pbymw8iwm/article/details/7971313
mqd_t m_exception_mqd; ///< 消息队列
struct mq_attr stru_mqa; ///< 消息队列的属性
https://blog.youkuaiyun.com/lingfeng2019/article/details/72417007
https://blog.youkuaiyun.com/pbymw8iwm/article/details/7971313
mqd_t m_exception_mqd; ///< 消息队列
struct mq_attr stru_mqa; ///< 消息队列的属性